Inseam shoe-sewing machine.



v w. c. MEYER. INSEAM SHOE SEWING MACHINE.

APPLICATION FILED JAN. 3. I9I6. 1,259,765. Patented Mar. 19, 1918.

2 SHEETS-SHEET I.

w. c; MEYER. INSEAM SHOE SEWING MACHINE.

APPLICATION FllED JAN. 3.1916.

- Patented Mar. 19,- 1918.

2 SHEETS -SHEET 2 UNE g1 WILLIAM C. MEYER, OF BEVERLY, MASSACHUSETTS, ASSIG'NOB, BY MESNE ASSIGN- MEN'IS, To UNITED SHOE MACHINERY A CORPORATION OF NEW JERSEY.

CORPORATION, OF ra'rnnsoiv, NEW JERSEY,

INSEAM SHGE-SEWI-NG MACHINE.

Specification of Letters Patent.

Patented Mar. 19, 1918.

Application filed, January 3,1915, Serial No. 69,880,

To aZZ whom it mag concern:

Be it known that 1, WILLIAM G.v MEYER, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Inseam Shoe.- Sewing Machines; and I do hereby declare the following to be a full, clear, and. exact description of the invention, such as. will enable others skilled in the art to which it appertains to make and use the same,

The present invention relates to inseam shoe sewing machines.

The object of the invention is to provide a welt and turn shoe sewing machine, with simple and efiicient means for holding down the channel flap of a shoe sole during the sewing operation so as to prevent the channel flap from being raised by the action of the thread thereon and thereby insure uniformity of stitch formation and eliminate liability of injury to the channel flap or breakage of thread.

With the above object in view the present invention contemplates providing the channel guide of a welt and turn shoe sewing machine with a projection to extend over the channel flap to prevent the flap from being raised by the pull on the thread during the formation and setting of a stitch. This projection preferably also extends from the channel guide in the line of feed of the work beyond the plane of movement of the needle and also when a thread finger is employed beyond the path of movement of the thread finger.

The present invention is designed primarily as an improvement in welt and turn shoe sewing machines which employ a take up acting to set the stitch while'the needle is in the work and with a thread finger which measures a length of thread between the work and the looper for one side of the needle loop. In its broader aspects, however, the invention is not limited to use in any particular type of welt or turn shoe sewing machine.

The present invention will be clearly understood from .an inspection of the accompanying drawings in which Figure 1 is a view in side elevation partly in section of a welt sewing machine with the preferred embodiment of the invention applied thereto; Fig. 2 is a detail plan View of the channel guide, hook needle, thread tinger and looper of the machine illustrated in Fig. 1, together with a portion of a shoe, the inseam of which is being sewed;

Fig. 3 is a viewv in front elevation of the parts illustrated in Fig. 2; and Fig. 4 is a, view in side elevation of the same parts with a portion of the shoe being operated upon shown in section.

With the exception of the channel guide the machine illustrated in Fig. 1 of the drawings is the same in. the construction, arrangement and mode of operation. of its parts. as the welt sewing machine disclosed in the patent to William C. Meyer, No. 1,059,380, dated April 22, 1913.

In the drawings, 1 indicates a curved hook needle, 2 the channel guide, 3 the thread finger, 4: the looper, 5 the take-up, 6 the auxiliary take-up, 7 the tension devices, 8 the welt guide, and 9 the feed slide. These parts are all mounted and operated in the same manner as the parts of the patented machine above referred to and with the exception of the channel guide, have the same construction.

In Figs. 2, 3 and 4 the insole of the shoe being operated upon is indicated at 10, the channel flap of the insole at 11, the upper of the shoe at 12 and the welt at 13. As is clearly shown in these figures, during the sewing operation the channel of the insole is engaged by the lip 15 of the channel guide which passes beneath the channel flap and supports the sole against the thrust of the needle which emerges from the channel at the left of the channel guide lip 15. It will also be seen that prior tothe passage of the looper 4 around the needle the thread finger 3 moves over the top of the channel flap so as to form a loop of thread between the work and the looper which loop of thread forms one side of the loop of thread drawn through the work by the needle. To prevent the channel flap from being raised by the pull exerted on the thread by the thread finger 3 the channel guide of the machine illustrated in the drawings is provided with a second lip 16 which projects from the body portion of the channel guide over the channel flap. This lip in addition to projecting rearwardly over the channel flap is also extended in the direction of feed so that it lies over the channel flap above the needle and under the path of the thread finger. .The lip 16, therefore, in addition to holding the channel flap down forms an abutment over which the thread is drawn by the thread finger. During the entire operation of the machine the lip 16 of the channel guide extends over and remains in contact with the channel flap so that the channel flap is prevented from being lifted and is protected at all stages of the stitch forming and setting operation. Also, certainty of operation of the thread finger in forming the loop of thread between the work and the loop er is insured so that uniformity of stitch formation results and danger of thread breakage by reason of inefficient operation of the thread finger is eliminated.

The nature and scope of the present invention having been indicated and the preferred formof the invention having been described, what is claimed is 1. A channel guide for inseam shoe sewing machines having a sole guiding lip to channel engaging lip extending rearwardly and also laterally with relation to the channel engaging lip to project over and hold down the channel flap during the sewing operation.

8. An inseam sewing machine, having in combination, stitch forming devices including a hook needle, a thread finger and a stitch setting take-up, a channel guide provided with a channel engaging sole guiding lip, and a second lip above thechannel engaging lip extending over the channel flap beneath the path of motion of the thread finger'to hold down the channel flap.

WILLIAM G. MEYER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents, Washington, D. G. 

